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Science: Ecology

TermDefinition
ecology the study of the relation between organisms and their environment
population a group of individuals of one species
organism a living thing
fluctuate to rise and fall
food chain a diagram showing one particular example of feeding relationships
food web a diagram showing all the food relationships in an ecosystem
predator an animal that hunt and eats another animal for food
prey an animal that is hunted for food
producer an organism that makes its own food through photosynthesis
consumer an organism that eats other living things for energy
energy pyramid a diagram that shows the available energy at each feeding level
trophic level feeding level in a food chain
decomposer organisms that eat dead organisms and waste and recycle them back into the environment
cellular respiration the process of breaking down sugar in a cell to release energy
Carrying capacity the largest population an ecosystem can support
limiting factor an environmental factor that prevents a population from increasing
symbiosis a close relationship between species where at least one organism benefits
mutualism a symbiotic relationship in which both organisms benefit
commensalism a symbiotic relationship in which one organism benefits and the other remains unaffected
parasitism a symbiotic relation ship in which one organism benefits and the other is harmed
parasite the organism in parasitism that benefits
host the organism in parasitism that is harmed
Created by: lharvey72
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